Lzc8650c Ic Datasheet Pdf -

The LZC8650C is typically housed in an 8-pin package to accommodate advanced diagnostic and safety functions, such as dedicated input overvoltage protection and NTC-driven temperature thermal foldback. Pin Number Description CMP

Gate drive output for the external power MOSFET (clamped at 16V). Power supply input. TS Temperature compensation point setting. RN NTC resistor connection for thermal compensation.

High-power isolated LED drivers, typically used in LED bulbs and tube lighting. lzc8650c ic datasheet pdf

+---------------------------------------+ | LZC8650C | | | (From Aux Winding)|--> [ FB Pin ] ------> [ Zero Current ] | | Detector ]----+| | || (Line Sense) ----> [ OVP Pin ] ---> [ Input Line OVP ] || | || (Loop Control) <-> [ CMP Pin ] <--- [ Error Amplifier ] |v | [PWM Logic] --> [ DRV Pin ] (Gate Drive) (NTC Network) <-> [ OTP Pin ] ---> [ Thermal Foldback ]^ | || (Current Sense)--> [ CS Pin ] ---> [ LEB / Overcurrent ]| | Limit ]-------+| | | | [ VDD ] --------> [ UVLO & OVP ] | +---------------------------------------+ Comprehensive Pin Configuration and Descriptions

The is a highly integrated, high-performance Primary-Side Regulation (PSR) and Power Factor Correction (PFC) controller IC designed specifically for offline isolated LED lighting applications . It eliminates the need for optocouplers and secondary-side feedback networks while delivering exceptionally accurate constant current control. Engineers looking to reduce overall system costs, shrink PCB footprints, and achieve high electrical efficiency frequently consult the LZC8650 PDF Datasheet for technical evaluation and reference designs. Core Functional Block Diagram & Architecture The LZC8650C is typically housed in an 8-pin

Common applications include:

Ensure adequate copper pour around the ground pin and the external MOSFET to dissipate heat, preventing premature triggering of the thermal shutdown protection. TS Temperature compensation point setting

VDRV_CLAMPcap V sub cap D cap R cap V _ cap C cap L cap A cap M cap P end-sub ): 16 V internal limit 400 ns typical Critical Built-in Protection Mechanisms